/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

package ru.miit.elearning.servlets;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.hibernate.Session;
import ru.miit.elearning.hibernate.dao.HibernateUtil;
import ru.miit.elearning.hibernate.dao.UserDAO;

/**
 *
 * @author Cyclone
 */
public class AddProfileServlet extends HttpServlet {
   
    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        String message = null;

        Session session = null;

        int userId = -1;
        try {
            userId = Integer.parseInt(request.getParameter("id"));
            int profileTypeId = Integer.parseInt(request.getParameter("profileId"));

            session = HibernateUtil.getSessionFactory().getCurrentSession();
            session.beginTransaction();

            UserDAO userDAO = new UserDAO(session);

            if (request.isUserInRole("admin")) {
                userDAO.addProfile(userId, profileTypeId);
                message = "Пользователь добавлен в группу";
            } else {
                message = "У Вас нет прав на добавление пользователя в группу";
            }

            getServletContext().setAttribute("message", message);
            if(userId != -1) {
                response.sendRedirect("Profile?id="+userId);
            } else {
                response.sendRedirect("Users");
            }
            if (session != null && session.isOpen()) {
                session.getTransaction().commit();
            }

        } catch (Exception e) {
            message = "Ошибка добавления пользователя в группу";
            e.printStackTrace();

            getServletContext().setAttribute("message", message);
            if(userId != -1) {
                response.sendRedirect("Profile?id="+userId);
            } else {
                response.sendRedirect("Users");
            }

            if (session != null && session.isOpen()) {
                session.getTransaction().rollback();
            }
        } finally {
            if (session != null && session.isOpen()) {
                session.close();
            }
        }
    } 

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    } 

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
